Unfortunately, the one thing the PMIC cannot (and does not) measure is the current from the 5V input, so the figures are of limited use in determining total current consumption.If you're using a Pi 5, then have a look at the PMIC ADC readout:
It won't be 40W. It will be 5V 3A which is 15W. As you say, okay for a Pi with limited peripherals, but unlikely to work with SSD if the CPUs are ever busy. As long as the cable is short and fat, the losses at 5V are not going to be critical, as the Pi's circuits all use lower regulated voltages. At worst, peripherals using 5V will suffer.Should work from cheap block with 40watt for type C to Pi 5 and 15/20 watt for the screen that needs only 8 watt. But Pi power uses 5.1 volts instead of 5 volts to overcome cable resistance. Some cables have too much resistance to use ordinary power supplies.
Statistics: Posted by davidcoton — Sat Jul 13, 2024 11:25 am